3 papers
math.AG2020
On tangential weak defectiveness and identifiability of projective varieties
Ageu Barbosa Freire, Alex Casarotti, Alex Massarenti
A point of a projective space is -identifiable, with respect to a variety , if it can be written as linear combination of elements o…
math.AG2019
On secant dimensions and identifiability of Flag varieties
Ageu Barbosa Freire, Alex Casarotti, Alex Massarenti
We investigate the secant dimensions and the identifiablity of flag varieties parametrizing flag of sub vector spaces of a fixed vector space. We give numerical conditions ensuring…
math.AG2018
Projective aspects of the Geometry of Lagrangian Grassmannians and Spinor varieties
Ageu Barbosa Freire, Alex Massarenti, Rick Rischter
We study the projective behavior, mainly with respect to osculating spaces and secant varieties, of Lagrangian Grassmannians and Spinor varieties. We prove that these varieties hav…